linux-kernel - Re: [RFC PATCH 0/7] x86/entry: Atomic statck switching for IST

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Message-ID: <20230406101254.GI386572@hirez.programming.kicks-ass.net>
Date:   Thu, 6 Apr 2023 12:12:54 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Lai Jiangshan <jiangshanlai@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        linux-kernel@...r.kernel.org,
        Lai Jiangshan <jiangshan.ljs@...group.com>,
        "H. Peter Anvin" <hpa@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Andy Lutomirski <luto@...nel.org>,
        Asit Mallick <asit.k.mallick@...el.com>,
        Cfir Cohen <cfir@...gle.com>,
        Dan Williams <dan.j.williams@...el.com>,
        David Kaplan <David.Kaplan@....com>,
        David Rientjes <rientjes@...gle.com>,
        Erdem Aktas <erdemaktas@...gle.com>,
        Jan Kiszka <jan.kiszka@...mens.com>,
        Jiri Slaby <jslaby@...e.cz>, Joerg Roedel <joro@...tes.org>,
        Juergen Gross <jgross@...e.com>,
        Kees Cook <keescook@...omium.org>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Stunes <mstunes@...are.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tom Lendacky <thomas.lendacky@....com>,
        Tony Luck <tony.luck@...el.com>, kvm@...r.kernel.org,
        linux-coco@...ts.linux.dev, x86@...nel.org
Subject: Re: [RFC PATCH 0/7] x86/entry: Atomic statck switching for IST

On Tue, Apr 04, 2023 at 07:03:45PM +0200, Paolo Bonzini wrote:
> On 4/4/23 05:17, Lai Jiangshan wrote:
> > The cover letter has 800+ lines of comments.  About 100-300 lines
> > of comments will be moved into the code which would make the diffstat
> > not so appealing.
> 
> Removing assembly from arch/x86/entry/ and adding English to Documentation/?
> That's _even more_ appealing. :)

I *much* prefer in-code comments to random gibberish that's instantly
out of date squirreled away somewhere in an unreadable format in
Documentation/